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2008 Confidence Interval Detail
061/Denton
043-905/Frisco ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 3,661,444,101 0.9943 3,682,433,975 25 12,850 .001447472
D3 99,450,487 1.1891 83,635,091 10 369 .048118855
Random Totals: 3,760,894,588   3,766,069,066 35 13,219  
Catg D1 Exception Values: 957,379   848,041      
Total Test Values (4): 3,761,851,967   3,766,917,107      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 188,345,855

Confidence Interval Values (5)

State Lower Limit: 3,578,571,252 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,761,851,967 (Within Confidence Interval)
State Upper Limit: 3,955,262,962 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,223,359,859 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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